Installing TWRP and SU root to Xiaomi Redmi Note 2 using a pc / laptop

I think this is the most convenient way than others. Which need to be prepared before the install is as follows

Equipment:
1. PC or laptop
2. The built-in USB Cable
Software:
1. MI PC Suite (can be downloaded here)
2. ADB driver (can be downloaded here)
3. Tools TWRP + SU (Download TWRP, SuperSU)

How Flashing TWRP redmi note 2
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1. Install USB drivers on your PC
2. Extract the ADB Drivers in a specific folder
3. Extract TWRP Recovery into a ADB folder Drivers earlier, Rename TWRP so (recovery.img)
4. Turn off Redmi Note 2, enter into fastboot mode by pressing (Power + Volume button below the screen off state)
5. Connect redmi Note 2 via a data cable to a PC / Laptop

See PC into the ADB folder
Right-click the folder "ADB TOOL" by pressing the "SHIFT", select Open Command Prompt
Last type "fastboot flash recovery recovery.img", then enter.

How Flash SuperSU redmi note 2
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Put the file on the memory card SuperSu.zip
 Turn off the Hp, enter TWRP, press (Power + Volume up button) hold the two keys to successful entry
After signing in TWRP recovery, flash as usual.

Flashing process as shown in the picture below
 

This step has been successfully tested in redmi Note 2 Global MIUI 8.0 Stable